百度地图POI周边检索/自定义覆盖物

鉴于百度地图不计其数的poi兴趣点 很多app在开发的时候都会选择调用百度地图资源

//主界面Activitypackage com.zhuang.search;import java.util.ArrayList;import java.util.List;import com.baidu.mapapi.map.BaiduMap;import com.baidu.mapapi.map.BitmapDescriptor;import com.baidu.mapapi.map.BitmapDescriptorFactory;import com.baidu.mapapi.map.MapView;import com.baidu.mapapi.map.Marker;import com.baidu.mapapi.map.MarkerOptions;import com.baidu.mapapi.map.OverlayOptions;import com.baidu.mapapi.map.Polyline;import com.baidu.mapapi.model.LatLng;import com.baidu.mapapi.overlayutil.OverlayManager;import com.baidu.mapapi.search.core.CityInfo;import com.baidu.mapapi.search.core.PoiInfo;import com.baidu.mapapi.search.poi.OnGetPoiSearchResultListener;import com.baidu.mapapi.search.poi.PoiDetailResult;import com.baidu.mapapi.search.poi.PoiDetailSearchOption;import com.baidu.mapapi.search.poi.PoiNearbySearchOption;import com.baidu.mapapi.search.poi.PoiResult;import com.baidu.mapapi.search.poi.PoiSearch;import com.baidu.mapapi.search.core.SearchResult;import android.os.Bundle;import android.widget.Toast;import android.app.Activity;public class MainActivity extends Activity implements OnGetPoiSearchResultListener{/** * POI周边检索 */private PoiSearch Mpoisearch;private MapView mapView;private BaiduMap Mmap;private double latitude,longitude;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();        //开始poi检索        //参数 keyword("关键字").radius(半径).location(new LatLng(坐标)))        Mpoisearch.searchNearby(new PoiNearbySearchOption().keyword("养生").radius(5000).location(new LatLng(latitude,longitude)));    }    private void initView() {        mapView  = (MapView) findViewById(R.id.bmapView);        Mmap  = mapView.getMap();        latitude = Double.parseDouble(SPUtils.getString(MainActivity.this, "latitude",""));        longitude =  Double.parseDouble(SPUtils.getString(MainActivity.this, "longitude",""));        //获取poi检索实例        Mpoisearch = PoiSearch.newInstance();        //实现检索监听        Mpoisearch.setOnGetPoiSearchResultListener(this);    }    /********************* POI检索结果的方法 ***********************/      public void onGetPoiResult(PoiResult result) {        if (result == null|| result.error == SearchResult.ERRORNO.RESULT_NOT_FOUND) {            Toast.makeText(MainActivity.this, "未找到结果", Toast.LENGTH_LONG).show();            return;        }        if (result.error == SearchResult.ERRORNO.NO_ERROR) {            //清除数据            Mmap.clear();            //添加poi覆盖物 并添加覆盖物的监听事件            MyPoiOverlay overlay = new MyPoiOverlay(Mmap);            Mmap.setOnMarkerClickListener(overlay);                     overlay.setResult(result);            overlay.addToMap();            overlay.zoomToSpan();            return;        }        if (result.error == SearchResult.ERRORNO.AMBIGUOUS_KEYWORD) {            // 当输入关键字在本市没有找到，但在其他城市找到时，返回包含该关键字信息的城市列表            String strInfo = "在";            for (CityInfo cityInfo : result.getSuggestCityList()) {                strInfo += cityInfo.city;                strInfo += ",";            }            strInfo += "找到结果";            Toast.makeText(MainActivity.this, strInfo, Toast.LENGTH_LONG).show();        }    }    public void onGetPoiDetailResult(PoiDetailResult result) {        if (result.error != SearchResult.ERRORNO.NO_ERROR) {            Toast.makeText(MainActivity.this, "抱歉，未找到结果", Toast.LENGTH_SHORT).show();        } else {            Toast.makeText(MainActivity.this, result.getName() + ":" + result.getAddress(), Toast.LENGTH_SHORT).show();        }    }    //自定义poi检索覆盖物    private class MyPoiOverlay extends OverlayManager {            private PoiResult result;            private boolean flag = false;            public void setResult(PoiResult result) {                   this.result = result;            }            public MyPoiOverlay(BaiduMap baiduMap) {                super(baiduMap);            }            @Override            public boolean onMarkerClick(Marker marker) {                onClick(marker.getZIndex());                return true;            }            public boolean onClick(int index) {                PoiInfo poi = result.getAllPoi().get(index);               //if(poi.hasCaterDetails){                    Mpoisearch.searchPoiDetail((new PoiDetailSearchOption()).poiUid(poi.uid));               // }                return true;            }            @Override            public boolean onPolylineClick(Polyline arg0) {                return false;            }            @Override            public List<OverlayOptions> getOverlayOptions() {                List<OverlayOptions> ops = new ArrayList<OverlayOptions>();                List<PoiInfo> pois = result.getAllPoi();                OverlayOptions op = null;                BitmapDescriptor bitmap = BitmapDescriptorFactory.fromResource(R.drawable.icon_green);                BitmapDescriptor bitmap2 = BitmapDescriptorFactory.fromResource(R.drawable.icon_red);                    for (int i = 0; i < pois.size(); i++) {                        if(flag){                            op = new MarkerOptions().position(pois.get(i).location).icon(bitmap);                           }                        else{                            op = new MarkerOptions().position(pois.get(i).location).icon(bitmap2);                        }                           ops.add(op);                                Mmap.addOverlay(op).setZIndex(i);                    }                return ops;            }    }    @Override    protected void onPause() {        mapView.onPause();        super.onPause();    }    @Override    protected void onResume() {        mapView.onResume();        super.onResume();    }    @Override    protected void onDestroy() {        MyApp app = (MyApp) getApplication();        app.mLocClient.stop();        mapView.onDestroy();        mapView = null;        super.onDestroy();    }}//Applicationpackage com.zhuang.search;import com.baidu.location.BDLocation;import com.baidu.location.BDLocationListener;import com.baidu.location.LocationClient;import com.baidu.location.LocationClientOption;import com.baidu.location.LocationClientOption.LocationMode;import com.baidu.mapapi.SDKInitializer;import android.app.Application;public class MyApp extends Application {    public LocationClient mLocClient;    @Override    public void onCreate() {        super.onCreate();            //初始化百度地图        SDKInitializer.initialize(getApplicationContext());        // 开始定位        // 创建定位客户端        mLocClient = new LocationClient(getApplicationContext());        // 注册定位的监听,获取定位的结果        mLocClient.registerLocationListener(new BDLocationListener() {            // 获取定位结果            @Override            public void onReceiveLocation(BDLocation location) {                //将定位的经纬度存入SharedPreferences                // 纬度                SPUtils.putString(getApplicationContext(), "latitude", String.valueOf(location.getLatitude()));                // 经度                SPUtils.putString(getApplicationContext(), "longitude", String.valueOf(location.getLongitude()));            }        });        // 对客户端进行各种配置        // 创建定位客户端的选项        LocationClientOption options = new LocationClientOption();        options.setLocationMode(LocationMode.Hight_Accuracy);// 设置定位模式        options.setCoorType("bd09ll");// 返回的定位结果是百度经纬度,默认值gcj02        options.setScanSpan(5000);// 设置发起定位请求的间隔时间为5000ms        options.setIsNeedAddress(true);// 返回的定位结果包含地址信息        options.setNeedDeviceDirect(true);// 返回的定位结果包含手机机头的方向        mLocClient.setLocOption(options);        // 开始定位        mLocClient.start();    }}//sp工具类package com.zhuang.search;import android.content.Context;import android.content.SharedPreferences;public class SPUtils {    private static SharedPreferences sharedPreferences;    // 存double(上下文,key,value)    public static void putString(Context context, String key, String value) {        if (sharedPreferences == null) {            sharedPreferences = context.getSharedPreferences("config",Context.MODE_PRIVATE);        }        sharedPreferences.edit().putString(key, value).commit();    }    // 取    public static String getString(Context context, String key, String defValue) {        if (sharedPreferences == null) {            sharedPreferences = context.getSharedPreferences("config",Context.MODE_PRIVATE);        }        return sharedPreferences.getString(key, defValue);    }}